Irrigation system

I'm planning on moving/changing the lay out of my veg beds and while I'm doing it was thinking of adding some drip/soaker hose (not sure which) irrigation.. my thoughts were irrigation hoses in each bed with an isolator valve to a hose running back to a water butt which due to the fall of the land will be at least 2-3 ft higher than tops of the beds depending how high I put the beds. 
Has anyone ever done similar, and do people think this should be enough fall to get enough pressure? Also anything I haven't thought of/recommendations of things I should add to the system?